Home / 779,341.28-1,169,348.69-419,091.06

Finding the Fourth Proportional to 779,341.28, 1,169,348.69 and 419,091.06

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Solution

The fourth proportional to 779,341.28, 1,169,348.69 and 419,091.06 is: 628,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,341.28 : 1,169,348.69 = 419,091.06 : x
  2. Step 2: Convert to fraction form
    779,341.28/1,169,348.69 = 419,091.06/x
  3. Step 3: Cross multiply
    779,341.28x = 1,169,348.69 × 419,091.06
  4. Step 4: Simplify right side
    779,341.28x = 490,063,585,077.11
  5. Step 5: Solve for x
    x = 490,063,585,077.11/779,341.28
  6. Step 6: Final answer
    x = 628,817.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.